The MAX14508E–MAX14511E/MAX14509AE are high-ESD-protected DPDT switches that multiplex Hi-Speed (480Mbps) USB and analog signals such as AC-coupled audio or video. These devices combine the low on-capacitance (CON) and low on-resistance (RON) necessary for high-performance switching applications in portable electronic devices, and include an internal negative supply to pass audio signals that swing below ground (down to VCC - 5.0V). The MAX14508E–MAX14511E/MAX14509AE also handle USB low-/full-speed signaling and operate from a +2.7V to +5.0V supply. The MAX14508E–MAX14511E feature +5.5V fault protection on COM1 and COM2, making these devices compliant with the USB 2.0 fault-protection specification. The MAX14510E/MAX14511E feature a VBUS detection input (VB) to automatically switch to the USB signal path upon detection of a valid VBUS signal. The MAX14508E/ MAX14510E feature internal shunt resistors on the audio path to reduce clicks and pops heard at the output. The MAX14508E/MAX14509E/MAX14509AE have an enable input (EN) to reduce supply current and set all channels to high impedance when driven low. The MAX14508E–MAX14511E/MAX14509AE are available in a space-saving, 10-pin, 1.4mm x 1.8mm UTQFN package, and operate over the -40°C to +85°C temperature range.
The Maxim MAX14508E‑MAX14511E family provides USB 2.0 Hi‑Speed (480 Mbps) and analog audio switching with negative‑signal capability. The devices feature low on‑capacitance, low on‑resistance, and internal shunt resistors to reduce click‑and‑pop in audio paths. They include VBUS detection and fault‑protection on COM pins, making them compliant with USB 2.0 specifications.
These switches are offered in a 10‑pin 1.4 mm × 1.8 mm Ultra‑Thin QFN package and operate over a temperature range of –40 °C to +85 °C. The datasheet lists absolute maximum ratings, electrical characteristics, ESD protection levels, test circuits, timing diagrams, and typical application circuits for cell phones, MP3 players, notebooks and PDAs.
| Supply Voltage | +2.7 V to +5.0 V |
|---|---|
| On‑Resistance (typical) | 2.40 Ω |
| -3 dB Bandwidth (typical) | 950 MHz |
| Total Harmonic Distortion (THD+N) | 0.05 % |
| Input Logic‑High (VIH) | 1.6 V |
| Input Logic‑Low (VIL) | 0.4 V |
They operate from +2.7 V to +5.0 V.
The typical on‑resistance is 2.40 Ω.